package models

import (
	"errors"
	"fmt"
	"reflect"
	"strings"
	"time"

	"github.com/astaxie/beego"
	"github.com/astaxie/beego/orm"
)

type ImsSequence struct {
	Id            string    `orm:"column(id);pk"`
	Type          int       `orm:"column(type);null"`
	Seq           int       `orm:"column(seq);null"`
	Remark        string    `orm:"column(remark);null"`
	Status        int       `orm:"column(status);null"`
	Isdelete      int       `orm:"column(isdelete);null"`
	Ctime         time.Time `orm:"column(ctime);type(timestamp with time zone);null"`
	Creater       string    `orm:"column(creater);null"`
	CId           string    `orm:"column(c_id);null"`
	Utime         time.Time `orm:"column(utime);type(timestamp with time zone);null"`
	Updater       string    `orm:"column(updater);null"`
	UId           string    `orm:"column(u_id);null"`
	OrgId         string    `orm:"column(org_id);null"`
	DeptId        string    `orm:"column(dept_id);null"`
	Name          string    `orm:"column(name);null"`
	SerialNumber1 int       `orm:"column(serial_number1);null"`
	SerialNumber2 int       `orm:"column(serial_number2);null"`
	SerialNumber3 int       `orm:"column(serial_number3);null"`
}

func (t *ImsSequence) TableName() string {
	return "ims_sequence"
}

func init() {
	orm.RegisterModel(new(ImsSequence))
}

// AddImsSequence insert a new ImsSequence into database and returns
// last inserted Id on success.
func AddImsSequence(m *ImsSequence, user *User) (err error) {
	o := orm.NewOrm()
	o.Begin()
	if _, err = o.Insert(m); err != nil {
		o.Rollback()
		return
	}
	rtype, _ := beego.AppConfig.Int("sequence_params_count")
	if err = autoInsertSequenceParams(rtype, m.Id, user); err != nil {
		o.Rollback()
		return
	}
	return o.Commit()
}

// GetImsSequenceById retrieves ImsSequence by Id. Returns error if
// Id doesn't exist
func GetImsSequenceById(id string) (v *ImsSequence, err error) {
	o := orm.NewOrm()
	v = &ImsSequence{Id: id}
	if err = o.Read(v); err == nil {
		return v, nil
	}
	return nil, err
}

// GetAllImsSequence retrieves all ImsSequence matches certain condition. Returns empty list if
// no records exist
func GetAllImsSequence(query map[string]string, fields []string, sortby []string, order []string,
	offset int64, limit int64) (ml []interface{}, err error) {
	o := orm.NewOrm()
	qs := o.QueryTable(new(ImsSequence))
	// query k=v
	for k, v := range query {
		// rewrite dot-notation to Object__Attribute
		k = strings.Replace(k, ".", "__", -1)
		if strings.Contains(k, "isnull") {
			qs = qs.Filter(k, (v == "true" || v == "1"))
		} else {
			qs = qs.Filter(k, v)
		}
	}
	// order by:
	var sortFields []string
	if len(sortby) != 0 {
		if len(sortby) == len(order) {
			// 1) for each sort field, there is an associated order
			for i, v := range sortby {
				orderby := ""
				if order[i] == "desc" {
					orderby = "-" + v
				} else if order[i] == "asc" {
					orderby = v
				} else {
					return nil, errors.New("Error: Invalid order. Must be either [asc|desc]")
				}
				sortFields = append(sortFields, orderby)
			}
			qs = qs.OrderBy(sortFields...)
		} else if len(sortby) != len(order) && len(order) == 1 {
			// 2) there is exactly one order, all the sorted fields will be sorted by this order
			for _, v := range sortby {
				orderby := ""
				if order[0] == "desc" {
					orderby = "-" + v
				} else if order[0] == "asc" {
					orderby = v
				} else {
					return nil, errors.New("Error: Invalid order. Must be either [asc|desc]")
				}
				sortFields = append(sortFields, orderby)
			}
		} else if len(sortby) != len(order) && len(order) != 1 {
			return nil, errors.New("Error: 'sortby', 'order' sizes mismatch or 'order' size is not 1")
		}
	} else {
		if len(order) != 0 {
			return nil, errors.New("Error: unused 'order' fields")
		}
	}

	var l []ImsSequence
	qs = qs.OrderBy(sortFields...)
	if _, err = qs.Limit(limit, offset).All(&l, fields...); err == nil {
		if len(fields) == 0 {
			for _, v := range l {
				ml = append(ml, v)
			}
		} else {
			// trim unused fields
			for _, v := range l {
				m := make(map[string]interface{})
				val := reflect.ValueOf(v)
				for _, fname := range fields {
					m[fname] = val.FieldByName(fname).Interface()
				}
				ml = append(ml, m)
			}
		}
		return ml, nil
	}
	return nil, err
}

// UpdateImsSequence updates ImsSequence by Id and returns error if
// the record to be updated doesn't exist
func UpdateImsSequenceById(m *ImsSequence) (err error) {
	o := orm.NewOrm()
	v := ImsSequence{Id: m.Id}
	// ascertain id exists in the database
	if err = o.Read(&v); err == nil {
		var num int64
		if num, err = o.Update(m); err == nil {
			fmt.Println("Number of records updated in database:", num)
		}
	}
	return
}

// DeleteImsSequence deletes ImsSequence by Id and returns error if
// the record to be deleted doesn't exist
func DeleteImsSequence(id string) (err error) {
	o := orm.NewOrm()
	v := ImsSequence{Id: id}
	// ascertain id exists in the database
	if err = o.Read(&v); err == nil {
		var num int64
		if num, err = o.Delete(&ImsSequence{Id: id}); err == nil {
			fmt.Println("Number of records deleted in database:", num)
		}
	}
	return
}

func GetSequenceByType(qtype int, user *User) ([]ImsSequence, error) {
	if qtype != 0 && qtype != 1 {
		return nil, errors.New("query type error")
	}
	o := orm.NewOrm()
	var l []ImsSequence
	switch qtype {
	case 0:
		_, err := o.QueryTable(new(ImsSequence)).Filter("Status", 1).Filter("Isdelete", 0).
			Filter("OrgId", user.Organization.Id).
			OrderBy("-Ctime").All(&l)
		return l, err
	case 1:
		_, err := o.QueryTable(new(ImsSequence)).Filter("Status", 1).Filter("Isdelete", 0).
			Filter("OrgId", user.Organization.Id).Filter("DeptId", user.Dept[0].Id).
			OrderBy("-Ctime").All(&l)
		return l, err
	}
	return nil, errors.New("query type error")
}

func SoftDeleteImsSequences(l []ImsSequence, user *User) error {
	if len(l) == 0 {
		return nil
	}
	o := orm.NewOrm()
	o.Begin()
	var ids []string
	for _, v := range l {
		ids = append(ids, v.Id)
	}
	if _, err := o.QueryTable(new(ImsSequence)).Filter("Id__in", ids).Update(orm.Params{
		"Status":   0,
		"Isdelete": 1,
		"Utime":    time.Now(),
		"UId":      user.Id,
		"Updater":  user.Abbr,
	}); err != nil {
		o.Rollback()
		return err
	}
	if _, err := o.QueryTable(new(ImsSequenceParams)).Filter("SequenceId__in", ids).Update(orm.Params{
		"Status":   0,
		"Isdelete": 1,
		"Utime":    time.Now(),
		"UId":      user.Id,
		"Updater":  user.Abbr,
	}); err != nil {
		o.Rollback()
		return err
	}
	return o.Commit()
}

// GetSequeccesOrderByCtime
// query ImsSequence order by ctime
func GetSequeccesOrderByCtime() ([]ImsSequence, error) {
	o := orm.NewOrm()
	var l []ImsSequence
	_, err := o.QueryTable(new(ImsSequence)).Filter("Isdelete", 0).Filter("Status", 1).OrderBy("-Ctime").
		All(&l)
	return l, err
}

func GetProjectNo(sequenceId, orgcode string, kind int) string {
	v, _ := GetImsSequenceById(sequenceId)
	no := fmt.Sprint(v.Utime.Year()) + orgcode
	switch kind {
	case 0:
		no += fmt.Sprintf("%03v", v.SerialNumber1)
		v.SerialNumber1++
	case 1:
		no += fmt.Sprintf("%03v", v.SerialNumber2) + "X"
		v.SerialNumber2++
	case 2:
		no += fmt.Sprintf("%03v", v.SerialNumber3) + "S"
		v.SerialNumber3++
	}
	orm.NewOrm().Update(v)
	return no
}
